.demo-block{
  border: 1px solid #ebebeb;
  border-radius: 3px;
  transition: .2s;
  margin-bottom: 50px;
}
.demo-block .source {
  padding: 24px;
}
.demo-block .demo-block-control {
  border-top: 1px solid #eaeefb;
  height: 44px;
  box-sizing: border-box;
  background-color: #fff;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  text-align: center;
  margin-top: -1px;
  color: #d3dce6;
  cursor: pointer;
  position: relative;
}
.demo-block .demo-block-control i {
  font-size: 16px;
  line-height: 44px;
  transition: .3s;
}
.demo-block .demo-block-control:hover {
  color: #409eff;
  background-color: #f9fafc;
}
.demo-block .meta {
  background-color: #fafafa;
  border-top: 1px solid #eaeefb;
  overflow: hidden;
  display: none;
  transition: height .2s;
}
.demo-block .description {
  padding: 20px;
  box-sizing: border-box;
  border: 1px solid #ebebeb;
  border-radius: 3px;
  font-size: 14px;
  line-height: 22px;
  color: #666;
  word-break: break-word;
  margin: 10px;
  background-color: #fff;
}


.hljs {
  line-height: 1.8;
  font-family: Menlo,Monaco,Consolas,Courier,monospace;
  padding: 18px 24px;
  background-color: #fafafa;
  margin-bottom: 25px;
  border-radius: 4px;
  border: none;
}
.demo-block code {
  font-family: Menlo,Monaco,Consolas,Courier,monospace;
  color: #3182bd;
  font-size: 16px;
}

.demo-block .description p {
  margin: 0;
  line-height: 26px;
  font-size: 14px;
  color: #5e6d82;
}
.demo-block .attr {
  color: #756bb1;
}
.demo-block .none {
  display: none;
}
.demo-table{
  padding: 30px;
}
.demo-item{
  display: inline-block;
  width: 250px;
}
